Yaskawa SGDS Sigma III Servo Amplifier - Manual (Page 309)

10 Inspection, Maintenance, and Troubleshooting
10.1.4 Troubleshooting of Alarm and Warning
10-20
A.920 Regenerative
Overload:
Warning for the
alarm A320 Occurred when the
control power supply
was turned ON. A SERVOPACK fault occurred. Replace the SERVOPACK.
Occurred during
normal operation
(Large increase of
regenerative resistor
temperature.) Regenerative energy is excessive. Check the regenerative resistor capacity,
or reconsider the load and operation
conditions.
Regenerative status continues.
Occurred during
normal operation
(Small increase of
regenerative resistor
temperature). The setting of parameter Pn600 is smaller than
the external regenerative resistor capacity. Correct the setting of parameter Pn600.
A SERVOPACK fault occurred. Replace the SERVOPACK.
Occurred at servomotor
deceleration. Regenerative energy is excessive. Check the regenerative resistor capacity,
or reconsider the load and operation
conditions.
A.930 Absolute Encoder
Battery Warning Occurred when the
control power supply
was turned ON
(Setting: Pn002.2=1) A SERVOPACK board fault occurred. (The
absolute encoder is used in the incremental
encoder setting.) Replace the SERVOPACK.
Occurred 4 seconds or
more after the control
power supply was
turned ON
(Setting: Pn002.2=0)
When an absolute
encoder was used The battery connection is incorrect or faulty. Connect correctly the battery.
The battery voltage is lower than the specified
value 2.7 V. Replace the battery, and turn OFF the
encoder power supply and ON again.
A SERVOPACK board fault occurred. Replace the SERVOPACK.
A.941 Change of
Parameters
Requires the
Setting Validation Occurred after having
changed parameter
setting. To validate new setting of this parameter, turn
OFF the power and ON again. Turn OFF the power and ON again.
A.94A Data Setting
Warning 1 Occurred when
PRM_RD, PRM_WR,
or PPRM_WR
command was sent. Disabled parameter number was used. Use the correct parameter number.
A.94B Data Setting
Warning 2 Occurred when
MECHATROLINK II
command was sent. Attempted to send values outside the range to the
command data. Set the values within the range.
A.94C Data Setting
Warning 3
(Calculation Error) Occurred when
PRM_WR or
PPRM_WR command
was sent. Calculation result of set value is incorrect. Set the parameter within the range.
A.94D Data Setting
Warning 4 Occurred when
PRM_RD, PRM_WR,
or PPRM_WR
command was sent. Parameter size set in command is incorrect. Use the correct parameter size.
A.95A Command
Warning 1 Occurred during
MECHATROLINK II
communications. Command sending condition is not satisfied. Send a command after command sending
condition is satisfied.
A.95B Command
Warning 2 Occurred during
MECHATROLINK II
communications. SERVOPACK received unsupported command. Do not sent an unsupported command.
A.95C Command
Warning 3 Occurred during
MECHATROLINK II
communications. MECHATROLINK II command cannot be
executed due to parameter setting condition. Set the parameter to execute the
command.
A.95D Command
Warning 4 Occurred during
MECHATROLINK II
communications. Command sending condition for latch-related
commands is not satisfied. Send a command after command sending
condition related to latch command is
satisfied.
A.95E Command
Warning 5 Occurred during
MECHATROLINK II
communications. Subcommand sending condition is not satisfied. Send a subcommand after command
sending condition is satisfied.
Table 10.4 Warning Display and Troubleshooting (Cont’d)
Warning
Display
Warning Name Situation at Warning
Occurrence
Cause Corrective Actions